224 A. H. Verrill—Marine Fauna off the New England Coast. 
egal callosa V., sp. nov. 
very large species, with a very thick, firm, leathery integu- 
ment, covered, especially on the uppe r half, with irregular, 
often angular, large low verrucze or babes: which fade out into 
irregular wrinkles be ow; the verruce extend to the uneven 
edge of the disk, at the base of the tentacles, without any change 
and tentacles ey, La ori y owing to the firmness and 
leather-like stiffness of the walls of the body, but smaller ones 
contract more ieay and have a much smoother surface. The 
column is usually, in expansion, higher than broad, vets 
more frequently smallest at base or, hour-glass ‘shaped, b 
when handled becomes more or less flattened longitudinally, or 
collapsed. Tentacles rather short, stout, obtuse, numerous, 
“aay much of the disk, usually extending more than half 
to the mouth, changeable in form, but not very coutrac- 
tile often bomeitudiaatly striated or wrinkled. Disk large, 
usually much broader than the column, and commonly concave. 
large, ree salmon-brown. Base broad, perc deeply 
similar habits, and grows. scat as ate The latter can thes 
- disguised by ng the dates upper part of the 
mn, for sl ort distance below the opis ak smooth, soft, 
the colimn is coriaceous, not febricous. and covered 
with irregularly icaelred. prominent, often very pros rounded 
tubercles, Upkeep below : there is usually ac losely adher- 
. 
